切换flutter渠道到master

flutter channel master

添加mac支持

flutter config --enable-macos-desktop

创建FLutter工程

工程目录下出现了macos

初玩Flutter桌面版(Mac)_macos

运行时选择macOS

初玩Flutter桌面版(Mac)_flutter_02

效果图

初玩Flutter桌面版(Mac)_macos_03